Major Reason Of Low Quality Of Airtel Hd Channels Is Mpeg 4 DVB S-2 "compression", Airtel Use 4 frequencies But Dishtv Use More Then 10 frequencies With Mpeg-2 And Low "compression".
I think More "compression" Decrease Picture Quality Of Channel.
MPEG-4 compressed video at a lower bit rate will not necessarily be better than a MPEG-2 compressed video at a higher bit rate.
Finally Tatasky And dishtv Better From Adtv,D2h And Sun direct